Examlex
We still do not know for certain when Homo erectus first used fire in a controlled manner.
Words
Symbols or combinations of letters that represent or convey meaning in spoken or written language.
Actions
The process or act of doing something, typically to achieve an aim or to navigate in one's environment.
Sensorimotor
Pertaining to the processing of sensory information to produce motor activity; often related to developmental stages in infants.
Cognitive Development
The study of how thinking, problem solving, and intelligence evolve as people age, primarily focused on childhood development.
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